Metallic alloy.



; i m-T STATES PATENT-OFFER GEZA HAnTMANN, or sAN FnAivcIsco, AND REINHARDT J. Boson. or os ANGELES,

. CALIFORNIA.

'lliiTALLIC nLLoY.

No Drawing.

. To all who hi it may concern:

Be it known that we, (ism llurrnwxx, citizen of .tustrnvllungary, and ltmxuann'r J. Boson, citizen of the United States residing at San Francisco and Los \ngeles, i respectively, in the counties of San Franf cisco and Los Angeles,respectively, and State of California, have invented certain new and useful Im rovements in Metallic Alloys; and' we do eieby declare the following to he a full; clear, and exact deseription of the invention, such as will enable 5 others skilled in the art to'which it appertains to make and use the same.

'lhis invention relates to metallic alloys, 5 more particularly such used as solder, its

object .heing t'oprovide a' solder forjoining together parts of aluminum and also for joining aluminum to other metals.

The. invention consists particularly of the.

'alloy composed as hereinafter set forth and ofthe process of compounding the ingredients of the alloy.

The metallic alloy devised for'these purposes is composed-of vanadium, aluminum.

antimony, bismuth, magnesium and tin, and

the best results are obtained when these in- Ill) gredients arc compoundmlin the following proportions-id aluminum fifteen and one half per cent. of antimony seven per cent; of hismuth ninc per cent; of vanadium one fourth of one per cent.; of magnesium two and one fourth per cent; of tin sixty-six per cent.; heariugin mind that the metals to he used shall. he of the quality known in the arts as pure.

in prep..ring the alloy place the correct portion of vanadium in a covered graphite cruclhle.

add the proper portion of tin. When all the metals are melted and heated until the I Specification of Letters Patent. Application filed November 21. 1911. Serial No. 661,466.

When it; is thoroughly melted add, in the order given; correct portions of Patented Mar. 19, 1912.

l mass assumes an orange color, clean out the s('tllll,1'0lll0\'6 the charcoal powder and our the compositon into forms or molds. urin; the PIOCQSSJlf mining. the compound must he kept at uniform heat to insure even ness of quality. The parts to be soldered 5 together must first he thoroughly cleaned I and this is host accomplished by heating the parts and brushing the surfacesoiihe fracture with a steel file or a wire brush. The parts tohe. soldered are kept uniformly heated and some ofthe solder is'applied and spread upon the parts to he joined with la soldering iron. or other tool adapted to the work. \Vhcn the first small portion of solder has heen joined to the hroken parts, or piece to he repaired, enough solder-should i he applied to this hase to make a smooth 1 joint. When thoroughlv cooled the solder can he ruhhed down and linished'to match the original work h v use of files, or Steel hrushes and sand cloth. or hutiing' wheels.

durahle. and will stand more strain than many of the original aluminum castings, and lapse of time does not affect its strength or ctliciency. ln compounding the ingredients the proportion may he slightly varied We claim as our invention:

1. metallic alloy of vanadium aluminum, antimony, bismuth. magnesium and tin, compounded substantially in the proportion stated and for the purpose specified. 1 2. metallic alloy compounded of fifteen i and one half (15.1) per cent. of commercially pure aluminum; seven (7) per cent. 'of commercially pure antimony; nine (9) per cent. of commercially pure hismuth; ne fourth of one of 1) per cent. of coinlmercially pure vanadium; two and one l fourth (2 and l) per cent. of commercially pure. magnesium and sixty-six- (66) per eemQof commercialy pure tin.

This solder has proven to he stronger, more without hanging the scope of the invention.

3:. The process of compoundingt-he here-.

i inhefore described metallic alloy, consisting. (1) in melting vanadium in a covered graphite crucible; (2) adding to the molten vanadium the bismuth, aluminum, antimony and magnesium, in the order given, and stirring thoroughly as each metal is added; (3) covering the metals in the crucible with charcoal powder; (4) when the above metals are thoroughly melted and mixed, adding the tin; (5) keeping at a uniform heat until the mass assumes an orange color, then removing the scumand charcoal and pouring into the proper molds.

In testimony whereof weafiix our signa- .tures, in presence of two witnesses.

' GEZA HARTMAN'N; g REINI-LARDT J. BUSCH. Witnesses as to Geza Hartmann:

- A. K. DAGGE'I'I, .O. L. CRUMP. Witnesses as to Reinhardt J. Busch:

E; O. Pms, M. A. TRACY. 

